Subject: [PATCH] tls-threadvar-pthread_self

Was implemented in:

commit 25260994c812050a5d7addf125cdc90c911ca5c1
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date:   Fri Apr 27 01:32:54 2012 +0000

    Store self in __thread variable instead of threadvar

..., but has been reverted; id:"87wr16xxey.fsf@kepler.schwinge.homeip.net"
needs to be addressed.